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		Grammar and Linguistics > Knock on the door/at the door?     
			
		 Knock on the door/at the door? 
		
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 blunderbuster
 
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							| Knock on the door/at the door? 
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							| Hi, 
 I am wondering if there is a difference between the two examples above.
 
 Hope you can help. Thanks.
 
 |  1 Nov 2010      
					
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 el_profe55
 
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							| Hello @blunderbuster, 
 �Knock at the door � would be used to describe what you do when you want someone to come to the door as in: We walked up the drive and knocked at the door but there was no one there.  � �Knock on the door � is what you actually do when you make the sound of your fingers/hand/fist on the door.
 
 
 hope it helps! Alex Carr |  1 Nov 2010     
					
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 blunderbuster
 
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							| That �s what I thought ("knock on wood"). 
 Thank you.
 
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 Vickiii
 
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							| I would go knock on the door.  I would say "Someone is at the door"  I wouldn �t actually say "I will go knock at the door"  doesn �t sound right - but then I am pretty informal sort of person. |  1 Nov 2010     
					
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 yanogator
 
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							| In the US, we almost exclusively say "knock on the door". Sometimes, with the noun "knock", we use "at", as in "There was a knock at the door" or "I heard a knock at the door", but even in that, "on" is more common.   Bruce |  1 Nov 2010     
					
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 edrodmedina
 
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							| @yanogator... Thanks for your help w/the math question. I shudda known. |  1 Nov 2010     
					
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 blunderbuster
 
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							| Thank you for all these wonderful answers! 
 
 
 |  1 Nov 2010     
					
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